Portable medical vacuum negative pressure drainage machine

Abstract

The utility model relates to the technical field of medical equipment, in particular to a portable medical vacuum negative-pressure drainage machine which comprises a vacuum negative-pressure main machine, a liquid storage bottle, a drainage tube and an exhaust tube, the vacuum negative-pressure main machine comprises a main machine shell and a vacuum pump, the liquid storage bottle comprises a bottle body and a bottle cap, a bottle body embedding groove is formed in one end of the main machine shell, and the drainage tube is arranged in the bottle body embedding groove. The bottle body can be embedded into the bottle body embedding groove, the bottle cap is provided with an exhaust tube connecting nozzle and a drainage tube connecting nozzle, a sealing ring is arranged at the joint of the bottle cap and the bottle body, one end of the drainage tube is connected with the drainage tube connecting nozzle of the bottle cap, and a one-way valve is arranged in the bottle cap and located on the lower portion of the drainage tube connecting nozzle. One end of the exhaust pipe is connected with an exhaust pipe connecting nozzle of the bottle cap, a filter element is arranged at the position, located on the lower portion of the exhaust pipe connecting nozzle, in the bottle cap, an exhaust pipe connecting opening is formed in the main machine shell, the other end of the exhaust pipe extends into the main machine shell through the exhaust pipe connecting opening and is connected with a vacuum pump, and an air pump check valve is arranged on the exhaust pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a portable medical vacuum negative pressure drainage machine. Background Art

[0002] In recent years, negative pressure wound therapy management, a closed-loop negative pressure therapy technology, has been widely used in various localized tissue wound healing treatments. Negative pressure wound therapy management technology uses a medical vacuum negative pressure machine to provide a negative pressure source. This negative pressure pipeline extracts air and exuded tissue fluid from the dressing component attached to the wound surface, thereby maintaining a negative pressure environment on the wound surface and promoting wound healing.

[0003] The medical vacuum negative pressure machine is mainly composed of components such as a negative pressure pump assembly, an air nozzle, a circuit board, a drainage tube, and a liquid storage bottle. The tissue fluid is drained into the liquid storage bottle through the negative pressure pump assembly. However, the existing medical vacuum negative pressure machine is usually large in size and inconvenient to move. In addition, the liquid storage bottle and the negative pressure pump assembly are separated, and the whole machine occupies a large space, which brings inconvenience to use in some applications. Utility Model Content

[0004] The utility model discloses a portable medical vacuum negative pressure drainage machine which is small in size, easy to carry and has a backflow prevention function.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is:

[0006] The suction pipe is connected with the suction pipe of the suction pipe, and the suction pipe is connected to the suction pipe of the suction pipe.

[0007] Furthermore, the host shell includes a main shell and a base, the base is connected to the bottom of the main shell, a battery embedding groove is provided on the base, and a lithium battery is arranged in the battery embedding groove; a display screen window is opened on the side of the main shell, a touch display screen is arranged at the display screen window, a handle fixing hole is set on the top of the main shell, a handle is provided on the top of the main shell, and the handle is fixedly installed at the handle fixing hole, a bottle body embedding groove is provided on one side of the main shell, an exhaust pipe connection port, a power switch and a power socket for connecting an external power supply are respectively provided on the main shell, a vacuum pump and a circuit board are provided inside the main shell, and the touch display screen, lithium battery, vacuum pump, power socket and power switch are all electrically connected to the circuit board.

[0008] Furthermore, a raised retaining rib is provided on the side wall of the groove where the bottle body is embedded.

[0009] Furthermore, the bottle cap is connected to the bottle body by threads, and anti-slip ribs are provided on the outer wall of the bottle cap.

[0010] Furthermore, the bottle body is divided into a bottle mouth, an upper part of the bottle body, a middle part of the bottle body and a lower part of the bottle body from top to bottom. A bottle mouth thread is provided on the outer wall of the bottle mouth. The upper part of the bottle body and the lower part of the bottle body both protrude outward relative to the middle part of the bottle body, and the middle part of the bottle body has an inward concave curvature.

[0011] Furthermore, a support plate with an L-shaped cross-section is provided inside the main shell. The support plate is divided into a horizontal plate and a vertical plate. The horizontal plate is fixedly installed on the main shell, the touch display screen is fixedly installed on the front of the vertical plate, and the circuit board is fixedly installed on the back of the vertical plate.

[0012] Furthermore, the interior of the main shell is provided with a fixed upper cover and a fixed lower cover, the fixed lower cover is fixedly connected to the base, the fixed upper cover is fixedly connected to the fixed lower cover, the fixed lower cover is provided with a vacuum pump accommodating cylinder with an open top, the fixed upper cover is provided with a vacuum pump outlet hole, the lower part of the vacuum pump is embedded in the vacuum pump accommodating cylinder, and the upper part of the vacuum pump extends out of the vacuum pump outlet hole.

[0013] Furthermore, the main shell is divided into an upper half and a lower half, one end of the lower half is an arc structure, and the other end of the lower half has a rectangular cross-section. The top surface area of ​​the upper half is smaller than the bottom surface area of ​​the upper half, and the top surface of the upper half is connected to the bottom surface of the upper half through four panels. The panel connecting the arc structure of the lower half and the top surface of the upper half is an arc plate, and the bottle body embedding groove and the exhaust pipe connection port are both set on the arc plate, and the remaining three panels are all inclined toward the inside of the main shell.

[0014] The utility model designs a vacuum negative pressure main unit with a compact size and an overall shape similar to that of an electric iron. A bottle embedding groove is provided on the shell of the vacuum negative pressure main unit, and the liquid storage bottle can be directly embedded in the shell of the vacuum negative pressure main unit, which does not occupy too much external space and is convenient to move and carry. In addition, the utility model is also provided with an anti-backflow component, which can prevent the drainage liquid in the liquid storage bottle from overflowing to the outside, and can also prevent the drainage liquid from flowing into the vacuum negative pressure main unit after the liquid storage bottle is tilted.

[0015] After further design optimization, the present invention adopts two compatible power supply modes, lithium battery and external power supply, for convenient portable use, which can meet the needs of different usage scenarios. For ease of operation, the present invention adopts a touch screen instead of the traditional button and knob control method, which is easier to operate and the display is more intuitive, with better visual effects. Under the premise of miniaturization, the touch screen display and circuit board components are integrated together using an L-shaped support plate, assembled into a single module, which not only saves internal space of the housing but also facilitates product assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the front structure of the portable medical vacuum negative pressure drainage machine in the embodiment;

[0017] Figure 2 Schematic diagram of the back structure of the portable medical vacuum negative pressure drainage machine in the embodiment;

[0018] Figure 3 This is a schematic diagram of a portable medical vacuum negative pressure drainage machine with the bottle cap removed;

[0019] Figure 4 This is an exploded view of the host housing;

[0020] Figure 5 This is an exploded view of the liquid storage bottle;

[0021] Figure 6 Schematic diagram of the structure inside the host shell;

[0022] Figure 7 for Figure 6 Structural diagram from another perspective;

[0023] Figure 8 This is an exploded view of the vacuum pump fixing part.

[0024] Reference numerals:

[0025] 1. Main shell; 101. Display window; 102. Handle fixing hole; 103. Exhaust pipe connection port; 104. Bottle body embedding groove; 105. Clamping rib; 2. Base; 201. Battery embedding groove; 3. Touch screen; 4. Handle; 5. Bottle body; 501. Lower part of bottle body; 502. Upper part of bottle body; 503. Middle part of bottle body; 504. Bottle mouth thread; 6. Bottle cap; 601. Exhaust pipe connection nozzle; 602. Drainage pipe connection nozzle; 603. Anti-slip rib; 7. Drainage pipe; 8. Exhaust pipe; 9. Air pump stop valve; 10. Power switch; 11. Power socket; 12. Sealing ring; 13. One-way valve; 14. Filter element; 15. Support plate; 16. Circuit board; 17. Vacuum pump; 18. Fix the upper cover; 19. Fix the lower cover; 20. Lithium battery. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] This embodiment discloses a portable medical vacuum negative pressure drainage machine, which is mainly composed of two parts: a vacuum negative pressure main unit and a liquid storage bottle. The liquid storage bottle is used to store tissue fluid exuded from the wound through a drainage tube 7 and drain it into the bottle. The vacuum negative pressure main unit and the liquid storage bottle are connected by an exhaust pipe 8, and negative pressure is formed at the wound by vacuuming.

[0028] Liquid storage bottle Figure 5 As shown, the bottle body 5 and the bottle cap 6 are divided. The top of the bottle cap 6 is provided with an exhaust pipe connection nozzle 601 for connecting to the exhaust pipe 8 and a drainage pipe connection nozzle 602 for connecting to the drainage pipe 7. The sidewalls of the bottle cap 6 are provided with anti-slip ribs 603 at circumferential intervals, and the inner sidewalls of the bottle cap 6 are provided with internal threads. From top to bottom, the bottle body 5 can be divided into a bottle mouth, an upper portion 502 of the bottle body, a middle portion 503 of the bottle body, and a lower portion 501 of the bottle body. The outer wall of the bottle mouth is provided with a bottle mouth thread 504, and the bottle cap 6 is connected to the bottle body 5 by a threaded connection. The liquid storage bottle in this embodiment is directly embedded in the vacuum negative pressure main unit. To make the liquid storage bottle more convenient to hold and pick up by hand, in this embodiment, the middle portion 503 of the bottle body is designed to have an inwardly concave arc, while the upper portion 502 and the lower portion 501 of the bottle body are both convex outward relative to the middle portion 503 of the bottle body.

[0029] The vacuum negative pressure main unit includes a main unit housing, inside which are respectively provided a vacuum pump 17, a circuit board 16, a support plate 15, a lithium battery 20, a fixed upper cover 18 for fixing the vacuum pump 17, and a fixed lower cover 19. The main unit housing and internal structure are described in detail below with reference to the specific drawings.

[0030] Host shell Figure 4As shown, the battery can be divided into a main housing 1 and a base 2, which is fixedly connected to the bottom of the main housing 1. The cross-section of the base 2 is formed by combining a rectangular and an arc structure. A battery embedding groove 201 is provided on one side of the rectangular portion of the base 2, and a lithium battery 20 is placed in the battery embedding groove 201. A lower cover 19 is fixedly mounted on the other side of the rectangular portion of the base 2.

[0031] The bottom of the main shell 1 is open, and the main shell 1 can be divided into an upper half and a lower half, wherein the shape of the lower half is the same as the cross-sectional shape of the base 2, that is: one end of the lower half is a circular arc structure, and the cross-sectional shape of the other end of the lower half is a rectangular structure. The top surface of the upper half is a rectangle, and the area of ​​the top surface is smaller than the entire bottom surface area of ​​the upper half. The top surface of the upper half and the bottom surface of the upper half are connected by four panels, wherein the panel connecting the circular arc structure of the lower half and the top surface of the upper half is a downwardly curved arc plate, and a circular bottle body embedding groove 104 is formed on the arc plate. An exhaust pipe connection port 103 is provided on the arc plate next to the bottle body embedding groove 104, and a protruding retaining rib 105 is provided on the inner wall of the bottle body embedding groove 104. The width of the lower half is greater than the width of the top surface of the upper half, so that the other three panels of the upper half are all inclined toward the inside of the main shell 1, which can further reduce the volume of the main shell 1. Figure 4 The direction shown is for reference, and a display screen window 101 is opened on the front panel of the main housing 1. Figure 2 As shown, a power switch 10 is mounted on the rear panel of the main housing 1, and a power socket 11 is mounted on the lower half below the power switch 10. The power socket 11 is used to connect to an external power source. Handle fixing holes 102 are provided at both ends of the top surface of the upper half of the main housing 1. The handle 4 is fixed in the handle fixing holes 102, and the entire device can be easily moved by hand.

[0032] The vacuum pump 17 is the core component of the vacuum negative pressure main unit and is fixed inside the main housing 1 through a fixed upper cover 18 and a fixed lower cover 19. Figure 8 and Figure 7 As shown, the fixed lower cover 19 is fixedly connected to the base 2, and the fixed upper cover 18 is fixedly connected to the fixed lower cover 19, wherein the fixed lower cover 19 is provided with a vacuum pump accommodating cylinder with an open top, and a vacuum pump outlet hole is opened on the fixed upper cover 18 corresponding to the vacuum pump accommodating cylinder, and the lower part of the vacuum pump 17 is embedded in the vacuum pump accommodating cylinder, so that the upper part of the vacuum pump 17 extends out of the vacuum pump outlet hole.

[0033] The vacuum negative pressure machine in the prior art is mainly controlled and adjusted by buttons or knobs. In order to have higher precision control and form a more intuitive visual effect, this embodiment adopts a touch screen 3 for inputting instructions and displaying data. The touch screen 3 is set at the display window 101 of the main shell 1. In order to further improve the assembly efficiency of the vacuum negative pressure host and reduce the space occupied by internal components, it is conducive to the miniaturization of the entire machine. Figure 6 and Figure 7 As shown, in this embodiment, the touch screen display 3 and the circuit board 16 are integrated into a single module via a support plate 15 having an L-shaped cross-section. Specifically, the support plate 15 can be divided into a horizontal plate and a vertical plate. The horizontal plate is attached to the upper half of the main housing 1 and fixed with screws. The touch screen display 3 is fixed with screws on the outward-facing surface of the vertical plate of the support plate 15, and the circuit board 16 is fixed with screws on the inward-facing surface of the vertical plate. The touch screen display 3, lithium battery 20, vacuum pump 17, power socket 11, and power switch 10 are each electrically connected to the components on the circuit board via wires. The power socket 11 and lithium battery 20 each provide two power supply methods. By connecting an external power source to the power socket 11 via a connecting wire, power can be supplied either externally or directly from the lithium battery 20. The electrical connections described above can be implemented using existing technology. The circuitry of this part is common knowledge to those skilled in the art and will not be further described in this embodiment.

[0034] The liquid storage bottle and the vacuum negative pressure main unit can be separated from each other or assembled together. The bottle body 5 of the liquid storage bottle can be directly placed in the bottle body embedding groove 104 of the main housing 1, reducing the external space occupied. The entire device can be moved by simply lifting the handle 4. When the liquid in the liquid storage bottle needs to be poured out, the bottle body 5 can be held and the liquid storage bottle can be taken out of the bottle body embedding groove 104 for pouring. Since the side wall of the bottle body embedding groove 104 is provided with a retaining rib 105, the liquid storage bottle can be firmly embedded in the bottle body embedding groove 104, preventing the liquid storage bottle from tipping over after a slight shake.

[0035] like Figure 1 and Figure 3As shown, in order to prevent the liquid in the liquid storage bottle from overflowing, a waterproof sealing ring 12 is provided at the connection between the bottle cap 6 and the bottle body 5, a one-way valve 13 is provided inside the bottle cap 6 at the lower part of the drainage tube connecting nozzle 602, and a filter element 14 is provided inside the bottle cap 6 at the lower part of the exhaust tube connecting nozzle 601, one end of the drainage tube 7 is connected to the drainage tube connecting nozzle 602 of the bottle cap 6, and the other end of the drainage tube 7 is located at the wound to absorb tissue fluid, one end of the exhaust tube 8 is connected to the exhaust tube connecting nozzle 601 of the bottle cap 6, and the other end of the exhaust tube 8 is extended into the interior of the main body housing 1 through the exhaust tube connecting port 103 and connected to the vacuum pump 17, and an air pump stop valve 9 is provided on the exhaust tube 8, which allows gas to pass through but blocks the liquid. Due to the setting of the one-way valve 13, even if the liquid in the liquid storage bottle is full, it cannot flow to the outside through the drainage tube 7. Similarly, due to the setting of the air pump stop valve 9, even if the liquid storage bottle is tilted, the liquid in the bottle cannot flow into the vacuum negative pressure host through the exhaust pipe 8. The filter element 14 can also filter the solid impurities in the bottle to avoid clogging the air path of the exhaust pipe 8 and affecting the exhaust effect.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable medical vacuum negative pressure drainage machine, characterized by: The vacuum negative pressure main unit includes a vacuum negative pressure main unit, a liquid storage bottle, a drainage tube and an exhaust tube. The vacuum negative pressure main unit includes a main unit shell and a vacuum pump located inside the main unit shell. The liquid storage bottle includes a bottle body and a bottle cap. One end of the main unit shell is provided with a bottle body embedding groove. The bottle body of the liquid storage bottle can be embedded in the bottle body embedding groove to form an integrated body with the vacuum negative pressure main unit. The bottle cap is provided with an exhaust tube connecting nozzle and a drainage tube connecting nozzle. A sealing ring is provided at the connection between the bottle cap and the bottle body. One end of the drainage tube is connected to the drainage tube connecting nozzle of the bottle cap. A one-way valve is provided at the lower part of the drainage tube connecting nozzle of the bottle cap. One end of the exhaust tube is connected to the exhaust tube connecting nozzle of the bottle cap. A filter element is provided at the lower part of the exhaust tube connecting nozzle of the bottle cap. An exhaust tube connecting port is provided on the main unit shell. The other end of the exhaust tube extends into the main unit shell through the exhaust tube connecting port and is connected to the vacuum pump. An air pump stop valve is provided on the exhaust tube.

2. The portable medical vacuum negative pressure drainage device according to claim 1, characterized in that: The host shell includes a main shell and a base, the base is connected to the bottom of the main shell, and a battery embedding groove is provided on the base, and a lithium battery is arranged in the battery embedding groove; a display screen window is opened on the side of the main shell, and a touch display screen is arranged at the display screen window; a handle fixing hole is set on the top of the main shell, and a handle is provided on the top of the main shell, and the handle is fixedly installed at the handle fixing hole; a bottle body embedding groove is provided on one side of the main shell, and an exhaust pipe connection port, a power switch and a power socket for connecting an external power supply are respectively provided on the main shell; a vacuum pump and a circuit board are provided inside the main shell, and the touch display screen, lithium battery, vacuum pump, power socket and power switch are all electrically connected to the circuit board.

3. The portable medical vacuum negative pressure drainage machine according to claim 1, characterized in that: A raised retaining rib is provided on the side wall of the bottle body embedded in the groove.

4. The portable medical vacuum negative pressure drainage device according to claim 1, characterized in that: The bottle cap is connected to the bottle body by using threads, and the outer wall of the bottle cap is circumferentially provided with anti-slip ribs.

5. The portable medical vacuum negative pressure drainage machine according to claim 1, characterized in that: The bottle body is divided into a bottle mouth, an upper bottle body, a middle bottle body and a lower bottle body from top to bottom. A bottle mouth thread is provided on the outer wall of the bottle mouth. The upper bottle body and the lower bottle body both protrude outward relative to the middle bottle body, and the middle bottle body has an inwardly concave arc.

6. The portable medical vacuum negative pressure drainage device according to claim 2, characterized in that: A support plate with an L-shaped cross-section is provided inside the main shell. The support plate is divided into a horizontal plate and a vertical plate. The horizontal plate is fixedly installed on the main shell, the touch display screen is fixedly installed on the front of the vertical plate, and the circuit board is fixedly installed on the back of the vertical plate.

7. The portable medical vacuum negative pressure drainage device according to claim 2, characterized in that: The interior of the main shell is provided with a fixed upper cover and a fixed lower cover, the fixed lower cover is fixedly connected to the base, the fixed upper cover is fixedly connected to the fixed lower cover, the fixed lower cover is provided with a vacuum pump accommodating cylinder with an open top, the fixed upper cover is provided with a vacuum pump outlet hole, the lower part of the vacuum pump is embedded in the vacuum pump accommodating cylinder, and the upper part of the vacuum pump extends out of the vacuum pump outlet hole.

8. The portable medical vacuum negative pressure drainage device according to claim 2, characterized in that: The main shell is divided into an upper half and a lower half, one end of the lower half is an arc structure, and the other end of the lower half has a rectangular structure in cross section. The top surface area of ​​the upper half is smaller than the bottom surface area of ​​the upper half. The top surface of the upper half and the bottom surface of the upper half are connected by four panels. The panel connecting the arc structure of the lower half and the top surface of the upper half is an arc plate. The bottle body embedding groove and the exhaust pipe connection port are both set on the arc plate, and the remaining three panels are inclined toward the inside of the main shell.

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